Deep silt foundation pit steel sheet pile reinforcing device and construction method thereof: Fid-Bau Portal

Deep silt foundation pit steel sheet pile reinforcing device and construction method thereof

FAN WENLIANG / GUO DACHUAN / LI GUANGCAN / WANG HUA / TIAN HUI

The invention discloses a deep silt foundation pit steel sheet pile reinforcing device and a construction method thereof. The steel sheet pile reinforcing device is composed of I-shaped steel, angle iron, steel wire ropes and steel wire rope buckles. The angle iron is respectively welded with steel sheet piles and the I-shaped steel and is welded on the upper parts of the steel sheet piles; the I-shaped steel and a structural column are tied by adopting the steel wire ropes and the steel wire rope buckles, and the tying position is flush with the root of a first-layer column; the I-shaped steel is horizontally placed and fixed on Larsen steel sheet piles protruding towards the outer side of the foundation pit; and the steel sheet piles protruding towards the outer side of the foundation pit are higher than the steel sheet piles protruding towards the inner side of the foundation pit. According to the device and the method, a more complicated stirring pile is not needed; construction materials are simple, easy to obtain and low in cost; the construction method is simple and does not occupy key route time; and the construction safety performance is high.

本发明公开了一种深层淤泥基坑钢板桩加固装置及其施工方法，该钢板桩加固装置由工字钢、角铁、钢丝绳、钢丝绳卡扣组成；前述的角铁分别与钢板桩、工字钢焊接，焊接位于钢板桩上部，采用钢丝绳及钢丝绳卡扣拉结工字钢与结构柱，拉结位置齐平首层柱根部；前述的工字钢平放固定于凸向基坑外侧的拉森钢板桩上，凸向基坑外侧钢板桩高于凸向内侧钢板桩。本发明无需采用更为复杂的搅拌桩；施工材料简单易得，成本低；施工工法简单，不占据关键路线时间；施工安全性能高。

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